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Finding the Fourth Proportional to 330,197.50, 455,672.55 and 179,294.50

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Solution

The fourth proportional to 330,197.50, 455,672.55 and 179,294.50 is: 247,426.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,197.50 : 455,672.55 = 179,294.50 : x
  2. Step 2: Convert to fraction form
    330,197.50/455,672.55 = 179,294.50/x
  3. Step 3: Cross multiply
    330,197.50x = 455,672.55 × 179,294.50
  4. Step 4: Simplify right side
    330,197.50x = 81,699,582,015.98
  5. Step 5: Solve for x
    x = 81,699,582,015.98/330,197.50
  6. Step 6: Final answer
    x = 247,426.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.